u(t) is called 60 times per second.
t: Elapsed time in seconds.
S: Shorthand for Math.sin.
C: Shorthand for Math.cos.
T: Shorthand for Math.tan.
R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
c: A 1920x1080 canvas.
x: A 2D context for that canvas.
if new parametr color (c in f(c,X) )== not default color orAnd typeColor ? make new color : else make default color ; How you think thisIdea==goodAndNearWithoutBug?
UPD: 1) "typeColor" in demo probably meaning color,pattern,gradient or any valid value 2) base idea what fillStyle work if get value like a color and maybe not make error if get other values and if fillStyle get "values other" previous value colorLike stay untouched 3) more simple code f=(c,X)=>{x.fillStyle='green';x.fillStyle=c;x.fillRect(X,99,99,99) };f('red',0);f('not color',99);f('rgb(0,0,255)',198);f(1,297) ; ~_^⠀goodLuck!
u(t) is called 60 times per second.
t: elapsed time in seconds.
c: A 1920x1080 canvas.
x: A 2D context for that canvas.
S: Math.sin
C: Math.cos
T: Math.tan
R: Generates rgba-strings, ex.: R(255, 255, 255, 0.5)